Populations recovered and stabilized, so the species was removed from the U. S. federal government's list of endangered species and transferred to the list of threatened species on July 12, 1995, and it was removed from the List of Endangered and Threatened Wildlife in the Lower 48 States on June 28, 2007.

Datasets are tables consisting of molecular, morphological, ethological and / or other characters and a list of operational taxonomic units ( OTUs ) which may be genes, individuals, populations, species, or larger taxa that are presumed to be monophyletic and that are presumed to form, all together, one large clade ; phylogenetic analysis reconstructs the branching pattern within that clade.

By design, CITES regulates and monitors trade in the manner of a " negative list " such that trade in all species is permitted and unregulated unless the species in question appears on the Appendices or looks very much like one of those taxa.

Because the remit of the Convention covers millions of species of plants and animals, and tens of thousands of these taxa are potentially of economic value, in practice this negative list approach effectively forces CITES signatories to expend limited resources on just a select few, leaving many species to be traded with neither constraint nor review.

If a " positive list " approach were taken, only species evaluated and approved for the positive list would be permitted in trade, thus lightening the review burden for member states and the Secretariat, and also preventing inadvertent legal trade threats to poorly known species.

Many sources list the domestic dog as Canis familiaris, but others, including the Smithsonian Institution and the American Society of Mammalogists, more precisely list it as a subspecies of C. l. familiaris ; the red wolf, eastern Canadian wolf, and Indian wolf may or may not be separate species ; in the past, the dingo has been variously classified as Canis dingo, Canis familiaris dingo and Canis lupus familiaris dingo.

Capybaras are on the IUCN list, but are not considered a threatened species ; their population is stable through most of their South American range, though in some areas, hunting has reduced their numbers.

* Flora Europaea: Digitalis species list

The remainder of the species list consists of cultivated food or ornamental species, grown in restricted environments such as a planter's pot.

The total bird list for the Chagos Archipelago, including Diego Garcia, consists of 91 species, with large breeding populations of 16 species.

* Global gecko association site with pictures, caresheets, species list

The American Ornithologists ' Union Committee on Classification and Nomenclature has said it is not yet ready to list the American and Cuban as separate species.

They've got a big vulture from Tanganika at the zoo here, with a wife for him, too, very rare birds, both of them, the only Vulturidae of their species outside Africa.

Fishing interest calls for a check of the species found, quantity and size, the season they are available, and the stocking program of the fish commission.

a marvelous arrangement, for it provides exactly what the bee queens need to make their beebread, a combination of honey and pollen with which the young of all species are fed.

It is an amazing fact that in some species this will happen while the summer is still in full swing, for instance, in August.

Oliver, in his summary of the habits of the snakes of the United States, could supply data on the maturing period for only three species in addition to the rattlers, which I shall consider separately.

The name thyroid-stimulating hormone ( TSH ) has been given to a substance found in the anterior pituitary gland of all species of animal so tested for its presence.

MacLean stressed correctly the importance of the visceral brain for preservation of the individual and the species, as evidenced by the influence of the limbic brain ( including the hypothalamus ) on emotions related to fight and flight and also on sexual functions.

Lacking these membranes, amphibians require water bodies for reproduction, although some species have developed various strategies for protecting or bypassing the vulnerable aquatic larval stage.

Urodela is a name sometimes used for all the extant species of salamander.

They have four limbs except for the legless caecilians and a few species of salamander.

Several hundred frog species in adaptive radiations ( e. g., Eleutherodactylus, the Pacific Platymantines, the Australo-Papuan microhylids, and many other tropical frogs ), however, do not need any water for breeding in the wild.

Of these, 1, 356 ( 33. 6 %) were considered to be threatened and this figure is likely to be an underestimate because it excludes 1, 427 species for which there was insufficient data to assess their status.

The species that gains the electron pair is the Lewis acid ; for example, the oxygen atom in H < sub > 3 </ sub > O < sup >+</ sup > gains a pair of electrons when one of the H — O bonds is broken and the electrons shared in the bond become localized on oxygen.

One seed-to-seed life cycle for an annual can occur in as little as a month in some species, though most last several months.

The family Araceae alone accounts for about a hundred genera, totaling over two thousand species.

The remaining families count together for less than 500 species.

The Asterales, by dint of being a super-set of the family Asteraceae, include some species grown for food, including the sunflower ( Helianthus annuus ), lettuce ( Lactuca sativa ) and chicory ( Cichorium ).

Despite the large number of species in order Asterales, they do not compare in economic benefit for mankind to the Poales or to the Fabaceae.

Loyalty requires affection also to the office of the Sovereign, attachment to royalty, attachment to the law and to the constitution of the realm, and he who would, by force or by fraud, endeavour to prostrate that law and constitution, though he may retain his affection for its head, can boast but an imperfect and spurious species of loyalty ( R v O ' Connell ( 1844 ) 7 ILR 261 ).

Some of the species of Allium are important food plants for example onions ( Allium cepa ), chives ( A. schoenoprasum ), garlic ( A. sativum and A. scordoprasum ), and leeks ( A. porrum ).

The abbey is a species of " exempt religious " in that it is, for the most part, answerable to the Pope, or to the abbot primate, rather than to the local bishop.

Abalone have long been a valuable food source for humans in every area of the world where a species is abundant.

The Andes is rich in fauna: With almost 3, 500 species, of which roughly 2 / 3 are endemic to the region, the Andes is the most important region in the world for amphibians.

Other animals found in the relatively open habitats of the high Andes include the huemul, cougar, foxes in the genus Pseudalopex, and, for birds, certain species of tinamous ( notably members of the genus Nothoprocta ), Andean Goose, Giant Coot, flamingos ( mainly associated with hypersaline lakes ), Lesser Rhea, Andean Flicker, Diademed Sandpiper-plover, miners, sierra-finches and diuca-finches.

There is a complete synonymy at the beginning of each species description.

The actual number of species in each group depends on the taxonomic classification followed.

( Which of the two families is actually larger is unclear, owing to uncertainty about exactly how many species exist in each family ).

The composition of resins is highly variable ; each species produces a unique blend of chemicals which can be identified by the use of pyrolysis – gas chromatography – mass spectrometry.

In Central and South America, the alligator family is represented by five species of the genus Caiman, which differs from the alligator by the absence of a bony septum between the nostrils, and the ventral armour is composed of overlapping bony scutes, each of which is formed of two parts united by a suture.

A population or species of organisms typically includes multiple alleles at each locus among various individuals.

When a group of different plant species was prompted by a variety of different stress signals, such as drought or cold, each plant responded uniquely.

Fewer than 5000 animals of each species likely remain.

No modern species should be described as more " primitive " than others, strictly speaking, since each has an equally long evolutionary history — but the brains of modern hagfishes, lampreys, sharks, amphibians, reptiles, and mammals show a gradient of size and complexity that roughly follows the evolutionary sequence.

Investigating how plant species are related to each other allows botanists to better understand the process of evolution in plants.

Further, each kingdom is broken down recursively until each species is separately classified.

The scientific name of an organism is generated from its genus and species, resulting in a single world-wide name for each organism.

It is concerned with the characteristics, classification, and behaviors of organisms, how species come into existence, and the interactions they have with each other and with the environment.

Carnivorans have either four or five digits on each foot, with the first digit on the forepaws, also known as the dew claw, being vestigial in most species and absent in some.

The theory asserts that all currently living organisms on Earth share a common genetic heritage with each being the descendant from a single original species, though the suggestion of substantial horizontal gene transfer during early evolution has led to questions about monophyly of life.

In artificial selection, one species is bred selectively at each generation, allowing only those organisms that exhibit desired characteristics to reproduce.

The beak of each species is suited to the food available in its particular environment, suggesting that beak shapes evolved by natural selection.

Social capital is defined by Robert D. Putnam as " the collective value of all social networks and species ( who people know ) and the inclinations that arise from these works to do things for each other ( norms of reciprocity ).

Equations should be balanced according to the stoichiometry, the number of atoms of each species should be the same on both sides of the equation.

Both species will kill each other's pups, given the opportunity.

Most species ( about 62 %) are in six extremely diverse families, each with at least 20, 000 described species: Curculionidae, Staphylinidae, Chrysomelidae, Carabidae, Scarabaeidae, and Cerambycidae.

: May 3, 1860: " Mr. Darwin has written a work which will constitute an era in geology & natural history to show that ... the descendants of common parents may become in the course of ages so unlike each other as to be entitled to rank as a distinct species, from each other or from some of their progenitors ".